The white patch on the face is considered to be related to white furfur, facial psoriasis, vitiligo and other factors. 1. white furfura: this is a scaly hypopigmented spot on the face, usually occurs in children and adolescents, the cause of the disease is still unclear, and may be related to malassezia infection, malnutrition, vitamin deficiency, long-term sun exposure and other factors. 2. Facial psoriasis: this is a chronic scaly skin disease caused by the interaction of many factors, if it occurs in the face, there will be the phenomenon of the face of a white piece of the phenomenon, mainly manifested in the skin erythema, which is covered with a thick layer of silvery-white scales. 3. Vitiligo: mainly due to the destruction of melanocytes and lead to the skin white spot disease, especially the darker skin color of the population than the lighter skin color of the population incidence rate is high. The face of a white piece of a piece may also exist other reasons, so should be as soon as possible to the doctor clear diagnosis, under the guidance of the doctor to do targeted treatment and treatment.